Finding the Fourth Proportional to 1,684.15, 2,323.84 and 938.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.15 : 2,323.84 = 938.10 : x
2. Step 2: Convert to fraction form
   1,684.15/2,323.84 = 938.10/x
3. Step 3: Cross multiply
   1,684.15x = 2,323.84 × 938.10
4. Step 4: Simplify right side
   1,684.15x = 2,179,994.30
5. Step 5: Solve for x
   x = 2,179,994.30/1,684.15
6. Step 6: Final answer
   x = 1,294.42